1. Study of suicide in Philadelphia;Tuckman;Pub. Health Rep.,1958
2. Suicidal risk in a municipal general hospital;Friedman;Dis. Nerv. Syst.,1958
3. Suicide in a state hospital for the mentally ill;Levy;J. Nerv. & Mint. Dis.,1953
4. Vital Statistics of the United States 1949,1951
5. Bureau of Records and Statistics, Dept. of Health, New York City, 1956. Unpublished data.